Heading is a metalworking process which incorporates the forging,
extruding and upsetting process. It is often performed in the cold
state, resulting in cold working. This process produces a near net
shape work piece, which means the final product is almost finished.Older machines are known as single-stroke headers, while newer
machines are known as double-stroke headers, because they have two
strokes; one stroke moves the workpiece into the machine and the
second heads the work piece.